****BANG! BANG! BANG!****
"Good heavens." Professor Flitwick jumped in surprise and Severus couldn't blame the tiny wizard. Someone was actually knocking on the front doors of Hogwarts.
"Potter!" Severus stopped the boy as he was leaving the Great Hall. "See what that is." He nodded curtly towards the doors. He watched as the brat rolled his eyes before opening the doors and slipping outside.
"Severus, was it really advisable to send a student to investigate?" Flitwick spoke up anxiously.
Severus simply shrugged his shoulders as Potter came back inside laughing to himself. "Professor Snape," he was still laughing as he came to stand in front of him. "you might want to poltergiest-proof the computer lab," he advised.
"Why?"
"See for yourself." Potter walked off hysterically laughing.
Going the doors, he threw them open to find two scruffy-looking young men. "Can I help you?" he hissed.
"Hi, my name's Sam," the tall, gangly one spoke up. "This is my brother, Dean. We got an e-mail from someone named Mr. Peeves. He said he knew of some witches and wizards that needed to be banished..."
Severus obliviated them and slammed the door in their faces. How in the bleeding hell did you murder a poltergeist? He intended to find out.